document.write( "Question 299306: suppose you rent a car for $21 per day and 15 cents per mile. How many miles could you have driven for a rental charge of $51? \n" ); document.write( "
Algebra.Com's Answer #215116 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Let x = the number of miles driven.
\n" ); document.write( "The rental charge can be expressed as:
\n" ); document.write( "C = $21+$0.15x and for C = $51.00 you get:
\n" ); document.write( "51 = 21+0.15x Subtract 21 from both sides.
\n" ); document.write( "30 = 0.15x Divide both sides by 0.15
\n" ); document.write( "x = 200 miles. This assumes these miles were driven in a single day.
\n" ); document.write( "
\n" );